Projecting method and allied apparatus



Nov. 11 1941.

' H. E. Ro'Ys PROJECTING METHOD AND ALLIED APPARATUS Original Filed July 1'7, 1937' A 4 Sheets-Sheet l Nov. 11, 1941.

H. E. ROYS PROJEGTING METHOD AND ALLIED APPARATUS Original Filed July 17, 1937 4 Sheets-Sheet 3 is INVENTOR lib/man E1209? ATTORNEYJ Nov. 11,1941. H. EROYS 2,262,050"

PROJECTING METHOD AND ALLIED APPARATUS Original Filed July 17, 1957 4 Sheds-Sheet 4 L0 61% 2 '4 mwa 220% 58% .000 no ELO CL 49 M ATTORNEY? Patented Nov. 11 1941 UNITED STATES PROJECTING METHOD AND ALLIED APPARATUS Herman E. Roys, New York, N. Y., assignor to Projecto-Writer Incorp New York orated, a corporation of Application July 17, 1937, serial No. 154,164 Renewed May 29, 1940 10 Claims. (01. ss 24) My invention relates tothe art of projecting information and, further, my invention has reference to mechanism utilizable for the typing or other production of symbols, words, or equivalent, on a suitable member or surface.

More particularly, my invention relates to the art of projecting images of representations indicative of variable stock prices,

Further, my invention relates. to apparatus of novel character utilizable for performing the projection operation aforesaid and, still further, such apparatus comprises typing mechanism embodying features new to the tying art.

Various other objects, features and advantages of my invention will become apparent from the following detailed description.

My invention resides in the projecting methods, the mechanism for performing such methods, typing mechanism, features and arrangements of the character hereinafter described and claimed.

For an understanding of my invention and for an illustration of one of the many forms there,-

of, reference is to be had to the accompanying drawings, in which:

Figure 1 is a plan view, partly broken away, showing mechanism as constructed in accordance with my invention;

Fig. 2 is an enlarged plan view showing a part :of the transparent character-bearing member which is disposed in the projection field of in novel arrangement;

Fig. 3 is a vertical sectional View, partly in elevation, of the mechanism shown in Fig. l;

Fig. 4 is an elevational view, partly in section, showing one form of an erasing assembly as .constructed in accordance with my invention;

Fig. 5 is an elevational view schematically illustrative of my invention;

part of my novel guide mechanism for the plate carriage of my invention; and

. Fig. 9 is a bottom view showing a part of my novel mechanism.

In general, my invention has reference to a projection system comprising means for projecting onto a screen images of characters which are typed or otherwise produced at will on atransparent plate disposed in the projection field of the projection system. In accordance with a preferred form of the invention, these characters are representative of stock prices and, since 15 I represents any suitable supporting device such,

for example, as a table having 'a horizontally disposed table top 2 on the top surface of which is suitably secured a base member 3 formed from metal or other suitable material. 'The table top 2 is apertured for the upward passage therethrough of one or more projecting light beams, and thebase member 3 is provided with an aperture to, Fig. 3, disposed in alinement with the aperture of said table top, these alined apertures being covered by a plate 4 formed from clear glass or other suitable transparent material suitable for ftaking ink while at the-same time readily permitting the subsequent erasure of the .ink, this plate 4, inthe example shown,:being thereof resting upon a suitable felt support 5 or the like, this feltsupport and the transparent plate 4 being confined within a channel frame 6 resting upon said base member 3.

Secured, ,for example, to said channel frame 6 by screws, not shown, is a' sheet metal plate 1 or the like which overlies the top surface of the transparent plate .4, said plate 1 comprising two flside-by-side apertures 1a, lb, Fig. 1, the aperture lodefining a projection field as regards an oblong area of the transparent plate 4 which receives character representations, as hereinafter described, and the aperture 'lb defining a projection field as regards an oblong area of the transparent plate 4 across which is moved in suitable manner a narrow tape T which isejected from a suitable stock ticker mechanism, not shown, and which is drawn from right not shown. The above noted screws may be withdrawn whereupon the plate 1 may be-removed so that the plate 4 may be removed should the latter become worn or scratched.

, The aforesaid 'base member 3, at opposite sides thereof, Fig. 1, has secured thereto the re,-

of oblong configuration, Fig. 1, and the border to left, Fig. 1, by a suitable tape-pulling device,

' As shown in Fig. 3, the frame member =tively', on opposite sides of that with said last named bar 2|. Pivoted to each lug23 is the base 24a of a key 24 resembling, in 'a general manner, a key of the kind ordinarily relation to each end of said rod 9, each set of disks I being coactable with one rack merh ber.

Disposed in a horizontal plane above the base member 3 is a sheet metal carriage plate ll or surface is a rubber type which is inserted in a cavity formed in the end of each key. Pivoted to each key base 24a and to the adjacent end of each bar 2| are a pair of links 25. As shown in Fig; 3, the lower end of each key 24 of a pair of said keys 24 is in engagement with the adjacent end of each bar 2|. When in this position, the spring 22 associated with said last named bar 2| and the rod l9 thereof has moved said bar and rod upwardly to the maximum extent. This is true because the engagement of the keys 24 with the respective ends of the bar 2! as specithe like having forward and rear portions there of cut away to form arcuate surfaces Ila, llb. The plate II, on the lower surface thereof, carries spaced bearing blocks [2, l2, Fig, 9, through which the rod 9 extends in freely slidable, non-threaded relation. Accordingly, these bearing blocks l2, l2 guide the plate II when it is moved in either direction along the rod 9.

Further, when the rod 9 is moved either forwardly or rearwardly along the racks 8, 8a, the

causes the plate I l to move with said rod 9.

Suitably secured, as by the screwsl3, to the forward edge of the plate II is a frame member M which extends from right to left, Fig. 1, a

fied prevents further straightening, beyond the position thereof shown in Fig. 3, of the links 25 with respect to the key base 24a.

The parts of the typing mechanism just described are so arranged that, for any single position of the carriage plate II, successive actuhearing blocks l2 form a connecting means which substantial distance beyond said plate H, the

frame member I4 having secured thereto an elongated frame member I5 which is disposed at right angles with respect to said frame member 14, the frame member I5 having secured thereto an elongated frame member I6 which is disposed at right'angles with respect to said frame member iii, the frame members l4 and I6 being disposed in parallel relation as shown in Fig. 1. These elongated frame members l4, l5 and I6 form a three-sided frame utilizable as hereinr after described.

l4, substantially mid-way between the sides of the plate H, has secured thereto 21 depending member 11 having a lower curved bearing surface Ila coactable, as hereinafter described, with the upper surface of the base 3. Somewhat similarly, the

frame member Iii carries a lower curved surface l-Ga which rests upon and coacts with the upper surface of the plate I in the area thereof forwardly of the two projection fieldshereinbefore described.

Upstanding from each side of the plate II is a standard 18a, these standards [8a supporting sponding passage formed therebelow in the plate H. Disposed in each pair of these vertically disposed passages and freely reciprocatory therein'is a rod l9,'the upper end of eachrod IE! carrying a finger piece 20. Secured to each rod His 9. horizontally disposed .b'ar- 2|, each bar 2! and the associated rod being biased upwardlyby a helical spring 22, one helical spring 22being disposed around each rod 20. Upstanding from and fixed to the plate H, beneath each bar 21, are a pair of lugs 23 disposed, respec used in typewriters and having, therefore, a typrod 20 associated ing surface at the remote end thereof. With the present form of the invention, this typing ationof all of the front row of typing keys would result in successive movement of all of the front typing surfaces to the same area at the front of the machine. In other words, the paths of these front typing surfaces converge toward each other as the transparent plate 4 is approached. Similarly, for any single position of the carriage plate II, successive actuation of all of the rear row of typing keys would result in successive movement of all of the rear typing surfaces to the same area at the rear of the machine. (By the front row of typing keys, I mean those keys whose finger pieces 20' bear the respective nulnerals ,4 &, 2, 4, 6, 8, 0, A and by the rear row of typing keys, I mean those keys whose finger pieces 20 bear the respective numerals V8,

1 1 f 1 781%? i Q I In view of the preceding description, it will be understood that depression of any finger piece 20--the one bearing the numeral 2, for examplecauses downward movement of the associated red I Sand bar 2| against the force of spring 22. Connected to this bar 2| by the two sets of links 25--are-the front and rear keys 24, the respective typing surfaces of which, in correspondence with the representation on said last named finger piece 20, bear representations of the nuciated pair of typing. keys to their respective typing positions. when pressure on said last named finger piece .20 is removed, the associated spring 22 returns the parts to their normal positions.

.It shall be, understood that, in accordance with the invention, depression of any finger piece 20 causes movement of a pair of keys to the respective typing positions thereof and, further, it shall :be understood that each. pair of associated keys, on the respective typing surfaces thereof, bear representations of the numeral indicated on the associated finger piece 20.,

Asv shown in Fig. 3, the lower ends of the rods [9, When'they are in their uppermost positions as just specified, project slightly below the lower surface of the plate ll. When thus disposed, said rods R9 are in engagement with a compensating bar 25 which extends from side to side of the plate. ll, said bar 26: being mounted in'freely oscillatory fashion on a shaft 21, the opposite ends of which project slightly beyond the respective opposite ends of the bar 26. The bar 28, at each end thereof, comprisesv a pair of laterally extending fingers 26a, Fig. 9, utilizable ashereinafter described. Each end of the shaft 21 is received in and supported by the slotted frame member l6.

lug 30 upstanding from the plate ll, either one or both of the levers 28 having secured thereto one end of a spring 31, the upper end of which is suitably anchored, for example, to the adjacent standard 18a, Fig. 3.

In accordance with the invention and as shown in Fig. 7, that lever 28, which is positioned adjacent the end of the frame member 14 removed from the frame member I5, has secured thereto in suitable manner an upstanding bracket 32 carrying a fixed horizontal pin 33 having a pawl 34 loosely mounted thereon, said pawl 34 being suitably biased in a counter-clockwise direction, Fig. '7, as by a spring 35 and a plunger 38 both of which are mounted in a passage formed in said pawl 34. The pawl 34 comprises a lateral surface, such as may be formed by a member 31- suitably secured to said pawl, the lower edge of said member 31 being adapted to engage one end of a lever 38 pivoted at 39 to a block 40 secured to the plate I l and depending therefrom. The other end of the lever 38 is adapted to engage the outer end of an arm 4| secured to and oscillatory with a shaft 42 loosely mounted in a bore extending longitudinally through the aforesaid frame member l4.

At the end of the frame member I4 removed from the arm 4|, a projecting section of the shaft 42 has fixed thereto an arm 43 to the end of which is pivoted one end of a link 44, the other end of which is pivoted to the end of an arm 45 secured to one end of and oscillatory with a shaft 46 extending, in freely oscillatory relation,

through the aforesaid frame member IS. The other end of the shaft 46 has secured thereto an arm 41, Fig. 6, to which is fixed a lateral member 48 carrying, in freely oscillatory relation, a collar 49 to which is secured one end of a link 50, the other end of this link 50 being pivoted to an arm rotatable with and fixed to one end of a shaft 52 mounted in a bearing formed by the upper section 53a of a standard 53 fixed to and extending vertically above the aforesaid The other end of the shaft 52' has fixed thereto a member 54, the upper end of which termintes in an extension 54a coactable with a stop section 53b formed on the aforesaidstandard 53. e

The lower'end of the member 54'terminates in a horizontal axle "55 on which, in" freely rotatable fashion, is mounted a roller or'wheel 56 formed from felt or other suitable absorbent material.

As shown in Figs. 3 and 6, the roller or wheel 58 is engageable directly with a roller 'or wheel 57 rotatably mounted on an axle 58 secured to and projecting horizontally from the aforesaid standard 53. If desirable and neces- Disposed at the rear of the base member 3, Fig. 3, is a pad 69 formed from felt, or equivalent, the upper section of this pad 60 being enclosed in a metalhousing 6| to the upper surface of which a rubber blanket 621 is cemented.

Secured to the base member 3 are a plurality of clips 63 which are adapted to engage theupper .surface. of a sheet 64 at the edges. thereof so as to detachably secure the same in fixed horizontal position to the rubber blanket 63. As here inafter described, the sheet 64 constitutes a checksheet and said sheet should be formed from glass, Celluloid, high gloss paper, or other material suitable for taking ink while at the same time readily permitting the subsequent mounted on a bar 69. A spool, ribbon and ribbon-shifting arrangement of the character just referred to is wellknown in the typewriter art and, therefore, the detailed operating mechanism thereof need not be shown herein. It will be understood that a ribbon arrangement of suitable character will thus be utilized so that the type keys effectively produce inked impressions on the sheet 64 all as hereinafter more fully described.

Referring to Fig. 4, a shaft 12 is shown as journaled in suitable bearing brackets. 13 upstanding from the plate II, this shaft 12 terminating substantially midway between the sides of said plate II and there carrying a pulley '14 which is rotatable therewith. Freely oscillatory on the shaft 12, immediately adjacent the pulley 14, are a pair of arms 15 and 15, these arms having the respective pins 15a and 16a projecting laterally therefrom and fixed thereto. Coactable with these pins 15a and 16a is a presser foot 11 having a shank section Ha. projecting upwardly therefrom, this shank section Ha comprising a flanged surface 11b adapted to engage the lower surface of the aforesaid horizontal member l8, and said shank section further comprising an upper stem section 11c slidable in a passage formed in said member l8, the stem section Tic terminating in an upper finger piece 71d. .A spring 18 disposed between the finger piece. 11d and the member I8 is utilized to bias the presser foot assembly in an upward direction,

Fig. 4.

arethe respective grooved rollers 19 and so mounted as to be freely rotatable on their respective supports. arm 8| which, at its lower'free end, carries a grooved idler roller 82. As indicated in Fig. 4, the arrangement is such that the pulley 14 together with the rollers 19, 80 and 82 are in alinement in a direction extending at right angles to the pinion rod 9. Because thus alined, said pulley 14 together with the rollers 19, 89 and 82 are positioned properly for the reception of an endless band 83 formed from rubber or other suitable elastic material. As indicated in Fig. 4, the arms 15 and 16 may comprise the respective lateral pins 15b, 16b, these being utilized in a desired manner to cause the band 83 to take the respective abrupt turns shown adjacent the ends of the respective arms 15 and 18. Further, if found necessary, the upper surface of the plate II, on opposite sides of the center bracket 13, may carry a pair of rollers 84 with which the band 83 is adapted to coact in the manner hereinafter described.

As shown in Fig. 7, a guide block 86 is supported in suitable manner above the plate II, this guide block defining a pair of vertical passages in which the rods 81, 8B are reciprocatory,

Secured to the arm 16 is a spring to the lower ends of the rods 8'1, 88- are'the respective pawls 81a, 88a which are coactable with the aforesaid pinion rod 9 and which are biased toward each other and toward said pinion rod 9 byaspring9I. Referring to Figs. 1 and 2, the aforesaid transparent plate 4 may be and preferably is provided with two sets of spaced, permanent lines, black or colored, I80 and IOI positioned at right angles with respect to each other to thereby define a plurality of symmetrically arranged zones I02a, I02a |02a I02a each zone, in the form of the invention herein shown, having assigned thereto one common stock as listed on the New York Stock Exchange. Thus, the zone I02a may be assigned to the common stock known as "Air Reduction, the zone IIIZa may be assigned to the common stock known as "Allied Chemical and Dye, etc. In addition, it is desirable that the transparent plate 4 be provided with another set of spaced; permanent black or colored lines I03 to thereby define sub-zones within which the names or indications of the respective stocks may be permanently written as shown in Fig. 2.

Further, as shown in Fig. 2, each row-of the zones I52a, I02a etc. extending from left to right, Fig. 2, bears permanent representations indicative of stock prices such, for example, as CL (close), HI (high), LO (low), LA (last). When the sets of zones are sub-divided by vertical spaces as shown in Fig. 1, these permanent'price representations maybe placed in each vertical space, if desired.

The upper surface of the hereinbefore described check sheet 64 is formed with permanent markings thereon so that, as regards such markings, said check sheet is a duplicate of the above described transparent plate 4. Thus, as indicated in Fig. 8, the checksheet 64 is provided with sets of lines I90, IIII to thereby define zones IIIZa, Inc -402a, said check sheet 64 also being provided with the sub-zone lines I03 and with the abbreviated representations indicative of stock prices.

In accordance with a preferred form of the invention, although not necessarily, the upper surface of the plate 3, between the check sheet assembly and the transparent plate 4, is provided with a plurality of sets of straight-line grooves arranged at right angles to each other. Thus, there is one set of grooves on the plate 3 for each row of the aforesaid zones extending longitudinally, from left to right, Fig. 1, of the transparent plate 4 and there is another set of right-angularly arranged grooves on said plate 3 for each row of the aforesaid zones extending transversely of said transparent plate 4. Each longitudinal set of the grooves on the plate 3 comprises single grooves IIlSo, IBSb, I860, 35d, these corresponding with the respective stock price representations CL, H11, LO, LA as hereinafter more fully described. Further, each transverse set of the grooves on the plate Boomprises single grooves lIlla, IEi'IbfIO'Ic; I' Old, these corresponding, respectively with the fraction, unit, ten, hundred columns for any individual stock.

In operation, the table I may be-positioned as shown in Fig. 5 wherein the operator is illustrated as seated in such position that she faces and is most closely adjacent the rear of the disclosed machine, i. e.,the part thereof which comprises the check sheet 84.

Assuming that the price quotations on the raw) and 8 with the areas blank which are reserved for the last price of American Can, and that the operator has obtained information, for example, from the tape T that this stock has just sold at 967 the operator, in order to record this information, places her'fingers on the plate I I and *moves the same from right to left, Fig. 1, in a straight-line direction longitudinally of the pinion rod 9.- In so doing, the surface I'Ia of the member I'I moves along one of the grooves IUIia, IIIGb, I060 or IBM of a set of said grooves, and the'surface IBaof the frame member I6 rests upon and moves along that surface of the plate 'I which is beyond the transparent plate 4. This movement of the plate II is continued until the member 68, which serves as an indicator, becomes symmetrically arranged with respect to the ten column in the fourth transverse row from the left of the edge of the check sheet 64,

i. e., the transverse row occupied by the zone for the stock American Can.

Thereupon, the operator moves the plate II at right angles to the direction of movement noted above, i. e., transversely with respect tothe check sheet 64, the slotted area of the member 3 and the transparent plate 4. The pinion rod 9 partakes of this movement of the plate I'I by virtue of the fact that the pinion teeth at opposite ends thereof ride along the respective rack members 8, 8a. In thus moving the plate II, the surface I'Ia of the member I! moves along that groove III'Ic of a set of the grooves III'Ia, I011), I010, III'Id leading to the ten column of the zone for the stock American Can. This movement of the plate II is continued until the member 68 becomes symmetrically related with'respect to the area on the check sheet 64 which is to be occupied by the numeral in the ten column for the .fLA price quotation for the stock American Can. The operator now depresses that finger piece 20 which bears a representation of the numeral 9 and, simultaneously, on the check sheet 64 and the transparent plate 4, the numeral 9, by the pair of keys associated with said last named finger piece 20, is typed in the respective areas assigned to the ten column of the stock American Can, LA price. I

As shown in Fig. l, the transparent plate 4 and the check sheet 64 are duplicates of each other as regards area, configuration and the arrangement of the various zones I02a, I02a etc. assigned to the respective stocks. It follows, therefore, provided that said plate 4 and the sheet 64 are fixed in proper positions with respect to each other, that the carriage plate II may beso positioned as described immediately above that any key of the rear set of keys will type in the ten column of the LA price for the stock American Can" as the same appears in the zone Ill2a of the check sheet 64, and any key of the front set of keys will type in the ten column of the LA price for the stock American Can as the same appears in the zone III2a. of the plate. 4. I

It is a'feature of the invention, therefore, that the typing of any character in a selected area of a zone of the check sheet 64 results in the simultaneous typing of a duplicate character" in the corresponding area of the corresponding zone of the transparent plate 4; The sheet. 64, then, enables the operator to properly position the carriagev plate II so that a character may be typed in a desired zone of the plate 4 and the Sheet 54 are as s wn'in' Figs, 2 transparent plate 4' and, at the same time, the

operator, by observation of the sheet 64 may-- check the accuracy of the typing operation.

Further, from a consideration of Fig. 1," it will be noted that the grooved surface of the plate 3 is a duplicate, as regards area and configuration, of the transparent plate 4 and the check sheet 64. In accordance with the invention, each set of grooves l06a, I061), I060 and l06d corresponds with the CL, HI, L and LA of a row of zones lllZa, |02aetc. disposed longitudinally of the plate 4 (and also a corresponding row of said zones disposed longitudinally of the sheet 64). Further, each set of grooves Hl'la, lfl'lb, 161a and 11d correspond with the.

fraction, unit, ten and hundred of a row of said zones extending transversely of the.

plate 4 (and also a corresponding row of said zones extending transversely of the sheet 64). Obviously, the respective positions of these grooves may be so chosen that, in cooperation with the curved bearing surface Ila, they serve individually as an aid to the operator in connection with the rapid and expeditious shifting of the carriage plate H to desired positions.

As described above, the operator, in order to type a representation in the ten column relating to the stock American Can, LA price, depresses that finger piece 26 which bears a representation of the numeral 9. It is necessary, of course, that ink be applied to the typing surfaces of the keys associated with said finger piece 26 prior to the time that said keys engage the transparent plate 4 and the check sheet 54, respectively. Ink is thus applied to said typing surfaces by the mechanism hereinbefore referred to, this mechanism being operative in the manner now to be described.

When the operator depresses that finger piece 20 bearing a representation of the numeral 9, the associated rod [9 is thrust downwardly to its full extent and, in so doing, the compensating by the pawl 34 causes the lever 38 to swing in a counter-clockwise direction, Fig. 7, so that the arm 4| is swung in a clockwise direction, Fig. '7, to thereby oscillate the shaft 42 in the same direction. As hereinbefore described, the shaft 42, at its end removed from the arm 4!, carries a second arm 43 to which is pivoted one endof a link 44, the other end of this link being pivoted to an arm 45 which is secured to one end of a shaft 46 carrying an arm 41 at.its other end. Accordingly, the described oscillatory movement of the shaft 42 producessimilar oscillatory movement of the shaft 46 in a clockwise direction, Fig. 6. Such oscillatory movement of the shaft 46, by the mechanical arrangement including the arm 41, the lateral member 48, the link 56. the arm 5| and the shaft 52, transmits oscillatory movement in. a clockwise. direction, Fig. 3,to the member 54 whereby the felt roller 56 is caused to move into the path of the typing surface 9 on the key 24 all as shown by the broken lines in Fig. 3.

Normally. the roller 56 is in engagement with the felt roller 5! which has ink supplied thereto by any suitable means, not-shown. There: fore, the roller 56 takes up a supply of ink and is in condition to apply .a film .of ink to the above noted typing surface when momentary engagement is effected between said typing surface and the roller 56 as shown in Fig. 3. Each time that the felt roller 56 snaps back into engagement with the felt roller 51, the latter is rotated slight 5 ly so that it constantly presents properly inked surfaces to the roller 56.

Referring to Fig. 7, the mechanical connection between the member 31 and the lever 38 becomes automatically disengaged after the bracket 32 has been moved downwardly to a predetermined extent. .This occurs just as the typing surfaceof the key 24 engages'the roller 56 as shown by the broken lines in Fig. 3. The opening of the mechanical connection as described discontinues the application of power causing the'member 54 to move clockwise, Fig. 3, and said member'54, under the influence of gravity and the spring 59, immediately returns to the full-line 'position thereof as shown in Fig. 3. Accordingly, it

follows that the roller 56 retreats from the path of the key 24 and the typing surface ofthe latter, without noticeable pause, moves with a snapping action, into engagement'with the selected area of the transparent plate 4 to type the numeral 9 thereon. When the operator releases the pressure on the finger piece 26, the

typing members return to their normal positions under the influence of energy stored in the spring 22.

As hereinbefore stated, the arrangement is such that all of the front typing keys, at the typing surface ends thereof, travel approximately along the same general pathasthey aremove'd' close to the plate 4. It results, therefore, that the inking roller 56, when moved to the broken ing surfaces on the set of typing keys facing the rear of the machine. Normally,"thi'sinking ribbon is so positioned that it is outside th path of movement of the rear typing surfaces. For

purposes of description, it may be assumedthat' this inking ribbon is controlled by suitable mech-'- anism, not shown, such, for example, as is'well" known in the typewriter art for causing the same to momentarily move into the path-of'any" rear typing surface just before the latter engages the check sheet 64. In this way, the rear typing surfaces are inked so that they may read ily type desired impressions on said check sheet 64. It will be understood that the above described mechanism of the typewriter art servesto withdraw the inking ribbon from the path of the rear typing keys as soon as they start returning to their normal positions.

After the representations of the numeral 9 forming a part of the price quotation 96% have been typed, the operator moves the-plate carriage ll toward the right of the machine, Fig. 1, the bearing surface lla moving from the above described groove H and entering the adjacent groove I011) whereupon that finger piece 20 exhibiting the numeral 6 is depressed. This, in the same manner hereinbefore described, causes duplicate representations of the numeral 6 to be typed on the plate-4 and sheet 64, respectively. Then, the plate carriage H is moved another step toward the right-until the -bear-. ing surface I la enters the adjacent groove lnla whereupon the finger, piece 20 exhibiting the numeral '7 is depressedand, as aresult, duplicate representations of said last named numeral are typed on theplate 4 and sheet 64, respectively.

In a detailed manner, I have described the sequence of operations which occur, after the plate carriage II has been moved to a desired typing position, in response to depression of the proper finger piece to type representations of the numeral 9 on the plate 4 and on the check sheet 64. It will be understood that these same operations are repeated in an automatic manner each time that a selected finger piece 20 is depressed to simultaneously type duplicate representations of any selected numeral on said plate 4 and sheet 64. That is, when any one of the characters shown on the finger pieces 20 is to be typed in any selected area of the transparent plate 4, the operator moves the plate carriage II until the member 68 is in a proper registering position with the corresponding area on the check sheet 64. Thereupon, the finger piece 20 of the selected character is depressed to thereby cause, in an automatic manner, the sequence of typing operations hereinbefore referred to in detail. Thus, for each area of the transparent plate 4 (and check sheet 64) within which a character may be typed, there is one proper position of the plate carriage II and this is defined by the intersection of a groove of the I66 series with a groove of the WI series- As de-. scribed, the bearing surface I'Ia coacts with the intersecting groove areas to releasably retain the plate carriage in selected positions.

As hereinbefore described, the impulse to the compensating bar 26 was delivered by a rod I9 positioned toward the rear of the machine. In those cases when the compensating bar receives an impulse from a rod I9 located to.-.

ward the front of the machine, it will be understood that said compensating bar 26 moves in a clockwise direction, Fig. 3, and, in effect, pivots on, the pair of fingers 26a extending toward the rear of the machine. The'clockwise movement last described of the compensating bar 26 has the same efiect on the levers 28 as the counter-clockwise movement of said compensating bar 26 previously described. That is, whether moved counter-clockwise or clockwise, the compensat ing bar 28, when actuated, causes the levers 28 to be swung in a clockwise direction, Figs. 3 and 7, to thereby move the bracket 32 downwardly for the purpose described.

As hereinbefore stated, my invention includes an arrangement for erasing selected character representations from the transparent plate 4 and the check sheet 64 at will.

To this end, the shaft 12 may be operated continuously by a suitable motor, not shown, whereby the elastic band 83 is caused to rotate at suitable speed along the path defined by the pulley I4 and the grooved rollers 19, 80, etc. Assuming, now, that information is obtained to the effect that the stock Air Reduction has sold at a price of 68 whereas the last sale price shown on the transparent plate 4 and check sheet I54 is 68 As soon as this information has been obtained, the operatcr moves the plate carriage II until, on the check sheet 64, the member 68 is in registering position with respect to the numeral f in the LA row for Air Reduction. Thereupon, the operator de-v Pre sesth fin r p ec "d. Fi o as to cause. the r us art of the era in assembly to move to the respective broken-line positions thereof shown in Fig. 4, this action occurring by. reason of the fact that the presser foot 11 engages the. pins 15a, 16a and causes the arms I5, I6 to move in the manner indicated. As a result of this operation, surfaces of the moving elastic band 83 engage that area on the printing plate 4 occupied by the designated numeral A and, at the same time, a moving section of the elastic band 83 also engages the area of the check sheet 64 occupied by the designated numeral A." The engagement thus efiected with the two areas just noted is only momentary but, as .a result of such engagement, the numeral is erased from both areas, the LA reading for the stock Air Reduction now appearing as 68. Immediately after this erasure, the operator rel-eases the finger piece I'Id whereupon the spring I8 returns the various parts of the erasing assembly to their normal respective positions. Thereupon, without shift of the plate carriage. I I, the operator depresses that finger piece 20 which exhibits the numeral whereby this numeral immediately typed on the transparent plate 4 and the check sheet 64.

For each character shown on the transparent plate 4 (and check sheet 64), there is one position (as defined by the intersection of a groove of the I06 series with a groove of the I01 series) which the plate carriage, II may take so that, by depression of the finger piece Ild, the two duplicate characters on said plate 4 and sheet 64 may be erased simultaneously as described.

It is often necessary for two stock prices to be changed in the same zone. For example, as regards Baldwin Locomotive, if information is received concerning a sale at 6%, it will be necessary to change L0 and LA, Figs. 2 and 8. To this end, the operator may properly position the plate carriage II for the erasure, of from LA and the subsequent typing of the numeral in place of the numeral /1. When this has been completed, the forward finger piece 89, Fig. 7, may be depressed whereby the pawl 8.8, by coaction withthe pinion rod 9, causes the plate carriage II to move forward one step. This arrangement is convenient when imparting short steps of movement to said plate carriage. Obviously, the rear finger piece 89, when actuated, will cause. rearward movement of said plate carriage II. If desired, the arrangement may be such that a short stroke of either finger piece 89 causes one step of movement of the plate carriage while a longer stroke of movement of either finger piece causes two steps of movement for the plate carriage.

The hereinbefore described plate 4 is positioned in the projection field of a projector of a character suitable for the intended purpose. Thus, by reference to Fig. 5, a suitable source of light, notv shown, as may be defined by one 01' a plurality of lamps, is disposed in a housingv I I II having a stack I II associatedtherewith if neces-. sary, the projecting light beam passing from the-housing I I0 in a direction from right to left,

Fig. 5, and engaging a mirror H2 which deflects said light beam upwardly along a vertical path. Above the mirror N2, the projecting light beam passes through a suitable condenser lens, system, such, for example, as the double set of condenser lenses H3, and then said projecting light beam passes through the projection fields 1a, 'I b within which are disposed the transparent plate 4 and the tape .T, respectively. In the form oi the invention herein shown, although not necessarily, two objective lenses II 4, I I4a coact with the combined projection fields to produce on a vertical screen H images of the characters appearing on the transparent plate 4 and the ticker tape T. As indicated in Figs, 5 and 6, the light type. That is, the character images are viewed.

from that side thereof facing the mirrors H6.

I, In Fig. l, I have illustrated a plurality of stop arrangements 120,,each of which preferably comprises an adjustable member as shown. These stop members are useful because preventing movement of the plate carriage ll under operator control to an undesired extent. As shown,

these stop arrangements are adapted to cooperate with the frame members l4 and I5 for the useful purpose described. i

Although I have described a present preferred form of my invention, it shall be understood that the invention is of general application and that, as regards some broader aspects thereof, it is not to be limited to the arrangements and mechanisms herein shown.

Thus, the use of a check sheet64, or equivalent, is desirable particularly for the reason that its'use enables the operator to perform the intended operations with accuracy and speed, and without requiring otherwise eye-fatiguing observation of the highly illuminated projection field. It shall be understood, however, that the invention is not to be limited to a check sheet of any particular form and, further, it shall be understood that, under some circumstances, the check sheet may be omitted.

erates the band 83 is utilized to operate a, fan serving to cool the lamp housing H0.

It will be understood that the invention is not to be limited to the use of the set of grooves In some respects, I have originated a typing mechanism of novel character and it shall be understood, therefore, that the typing mechanism is not to be limited to use with a projector except as defined in the appended claims.

The projection system and arrangement of my invention is of highly practical character for the intended purpose. Thus, arrangements as herein described areintended for use particularly in the customers rooms of brokers offices. As indicated in Fig. 5, the operator may be seated adjacent and facing one wall of such a customers room with the mechanism of my invention adjacent her seat. The projecting light beam travels vertically upwardly and then horizontally across the room. The horizontal part of the projecting light beam may readily be sufficiently high so that people may walk around or be seated therebeneath without causing any interference whatsoever. This, obviously, is desirable from the viewpoint of space conservation, etc.

The band or belt 83 should be triangular in section so that one flat side thereof engages the typed representations on the plate 4 and sheet 64 when performing the erasing operations. When the parts are positioned as shown by the full lines in Fig. 4, the band 83 is sufficiently loose so that it remains stationary. Thus the arrangement should be such that it is necessary for the finger piece 1111 to be moved downwardly a certain distance before the belt is tightened sufficiently to cause movement thereof under the influence of the constantly revolving pulley I4.

Preferably, the above noted motor wluch' op- I060, I061), etc. and 10111, 10'"), 'etc.- As Well, if

desired, positioning arrangements of other character for the carriage Hmaybe used. Further under some circumstances and if desirable, such positioning groove arrangementor equivalent, may be entirely omitted.

While the invention has been described with respect to a certain particular preferred example which gives satisfactory results, it will be understood by those skilled in the art after understanding the invention, that various changes and modifications may be made without departing from the spirit and scope of the invention and it is intended therefore. in the appended claims to cover all such changes and modifications. What is claimed as new and desired to be secured by Letters Patent is: I

1. In a projection system, an imprint-receiving member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a screen, means for typing characters on said imprintreceiving member, said last named means comprising a carriage movable in directions at right angles to, each other with respect to and across the face of said imprint-receiving member, and means forming a support on which said carriage is thus movable. I

2. In a projection system, an imprint-receiving member of transparentmaterial disposed in a projection field, means for passing a projecting light beam through said transparent member and thence to a screen, supporting means, a carriage movable on said supporting means longitudinally and transversely with respect to and across the face of said transparent member, and a plurality of typing keys carried by said carriage, the type on any of said typing keys, upon actuation thereof, moving to the same area of said transparent member provided that said carriage remainsstationary in a single position.

3. In a projection system, an imprint-receiving member of transparent material disposed in a projection field, said transparent member being divided into a plurality of zones and each zone bearing permanent indicia which identify a stock and which form legends such as open, high, 1ow.or last," means for passing a projecting'light beam through said transparent member and thence to a screen, supporting means, a carriage movable on said supporting means'longitudinally and transverselywith respect to and across the face of said transparent member, and a, plurality of typing keys carried by said carriage, the type on any of said typing keys, upon actuation thereof, moving to the same zone of said transparent member provided that said carriage remains stationary in a single position or is moved only slightly therefrom.

4. In a projection system, a first imprint-receiving member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a,

screen, a second imprint-receiving member disposed exteriorly of said projection field, and a bank of typing keys, one group of said typing keys being coactable with said first imprint-receiving member and another group of said typing keys being coactable with said second imprint-receiving member, the information typed on said first imprint-receiving member being related to the information typed on said second imprint-receiving member whereby the operator may check the information typed on said, first imprint-receiving member without directly observing the same.

5. In a projection system, a first imprint-rcceiving member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a screen, a second imprint-receiving-member disposed exteriorly of said projection field, and a bank of typing keys, one group of said typing keys being coactable with said first imprint-receiving member and another group of said typing keys being coactable with said second imprint-receiving member, the two imprint-receiving members being provided with duplicate sets of zones arranged in predetermined relation with respect to each other, the information typed on said first imprint-receiving member being related to the information typed on said second imprint-receiving member whereby the operator may check the information typed on said first imprint-receiving member without directly observing the same.

6. In a projection system, a stationary imprint-receiving member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a screen, means for typing characters on said imprint-receiving member, said last named means comprising a carriage movable in different angularly related directions with respect to the face of said imprint-receiving member, and means forming a support on which said carriage is thus movable.

7. In a projection system, an imprint-receiving member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a screen, character-forming means, means for supporting the character-forming means in operative relation to the imprint-receiving member, means for operating said character-forming means to form characters on said imprint-receiving member, said supporting means and said imprint-receiving member being movable relatively to each other so that the characters may be formed in a selected area of said imprint-receiving member, character-erasing means, means for supporting the character-erasing means in operative relation to the imprint-receiving member, said secand named supporting means and said imprintreceiving member being movable relatively to each other so that the character-erasing means may be positioned in erasing relation with respect to a selected area of said imprint-receiving member, and means for operating said charactererasing means to erase the characters previously formed in said last named selected area.

8. In a projectionsystem, an imprint-receive.-

ing member disposed in a projection field, means for passing a projecting light beam into engagement with said member and thence to a screen, character-forming means, means for supporting the character-forming means inoperative rela-- tion to'the imprint-receiving member, means for operating said character-forming means to form ber, character-erasing means, means for supporting the character-erasing means in operative relation to the imprint-receiving member, said second named supporting means and said imprintreceiving member being movable relatively to each other so that the character-erasing,.means may be positioned in erasing relation with respect to a selected area of said imprint-receiv ing member, and means for operating said char-,

acter-erasingmeans to erasethe characters previously formed in said last named selected area, both of said supporting means being constituted as a single carriage movable in different angular-. ee? 9 1y related directions with respect to the said imprint-receiving member.

9. In a projection system, a stationary imprint-i receiving member disposed in a projection field,

means for passing a projecting light beam into engagement with said member and thence to a screen, means for typing characters on said imprint-receiving member, said last named means comprising a carriage movablei in diif erent angularly related directions withres'pect to the faceof said imprint-receiving memberfmean s'formf ing a sup-port on which said carriage is thus movable, and means for removing previously typed characters" from said imprint-receiving member.

10. In a projection system, a stationary im print-receiving member disposed in a projection.

field, means for passing a projecting light beam into engagement with said member and thence to a screen, means for typing characters'ori said imprint-receiving member, said last, namedi means comprising a carriage movable in differ ent angularly related directions with respect to the face of said imprint-receiving member,

said character-erasing means.

HERMAN E. RoYs, 

